Article Takedown/Update Request

This is an update request for the document License GPL (> = 2) by Roger Biv and Pru Foster

Your paper was deposited in CiteSeerX and appears online at http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.180.2285
Before we are able to make any updates or deletions, you must ensure that the original record at this location is updated/removed.